Rosette for electric wiring.



No 862,660. PATENTED AUG. 6; 1907. W. P. BITTER. ROSETTE FOR ELECTRIC WIRING.

APPLIUATION FILED 00128, 1906! TM/liy sses uf z WILLIAM F. BITTER, OF CINCINNATI, OHIO.

ROSETTE FOR ELECTRIC WIRING.

Specification of Letters Patent.

Patented Aug. 6, 1907.

Annlication filed October 28, 1905. Serial No. 284,853.

To all whom it may concern:

Be it known that I, WILLIAM F. BITTER, a citizen of the United States of America, and a resident of (incinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Rosettes for Electric Wiring, of which the following is a specification.

This invention relates to certain improvements in rosettes such as are especially adapted for employment for the suspension and connection in circuit of pendent incandescent electric lamps, and the object of the invention is to provide a device of this character of a simple and inexpensive nature wherein effective insulation of the circuit wires is afforded so that the employment of a fuse is dispensed with and danger from fire due to short-circuiting is avoided.

The invention consists in certain novel features of the construction, combination and arrangement of the several parts of the improved rosette, whereby certain important advantages are attained and the device is rendered simpler, cheaper and otherwise better adapted and more convenient for use, all as will be hereinafter fully set forth.

The novel features of the invention will be carefully defined in the claims.

In the accompanying drawings which serve to illustrate my inventionFigure 1 is a face view of the improved rosette; Fig. 2 is a back or rear face view of the device; Fig. 3 is a side elevation showing the rosette; Fig. 4 is a transverse section taken through the rosette in the plane indicated by line a-a in Fig. 2; Fig. 5 is a partial face view, somewhat similar to but drawn to a larger scale than Fig. 1 and showing the rosette with a portion of its dome-wall broken out to better illustrate the insulating means within the same; Fig. 6 is a side elevation, similar to but drawn to a larger scale than Fig. 3 and showing a portion of the dome-wall of the rosette broken out; Fig. 7 is a partial section taken through the edge-flange of the rosette and showing the socket for receiving the heavy outer coating or covering of the circuit-conductor; and Fig. 8 is a fragmentary plan view of the body portion of the rosette with the L- clip removed to show the L-shaped projection or platform to support said L-clip.

As seen in these views, the improved rosette has a circular or disk-like body portion 1 which is formed in the usual way from porcelain or other suitable insulating material with an integral, outwardly-extend ed, shallow edge-flange 2 formed around it, the top or rear surface of said body portion being made flattened so that it may be readilyfitted flush upon the ceiling or wall to which it is to be attached. For the secure attachment of the rosette to such ceiling or wall, said edge-flange 2 has, at opposite sides, screw-openings 3 for the passage of screws 4, (see Fig. 6) to be driven into the wall or ceiling at. i

The body portion 1 has a central, integral and downwardly-directed dome-like portion 5 which is made hollow or chambered at the rear or top surface of the body portion, the edges of the hollow or chamber within said dome-like central portion 5 being formed into a seat or annular ledge 6 in which is adapted to be received a lid or cover 7, formed of a flattened circular plate, preferably of insulating substance, and which, when seated upon said ledge 6, closes said hollow or chamber at the rear or top of the body portion and has its outer face flush with the rear or upper surface of the edge flange 2 of the body portion so as to [it tightly upon the ceiling {I} and thus be retained in position when the rosette is attached thereto.

Within the chamber or hollow of the central domelike portion 5 of the body portion is extended a transverse or diametrical partition 8, which is integral with the said body portion and divides said chamber into two semi-circular compartments 9 and 10, the upper face or edge of said partition being arranged to fit upon the under surface of the lid or cover 7. The compartments 9 and 10 thus produced are designed to receive the respective circuit connections or wires of the lamp which are, by means of the transverse partition 8 and lid or cover 7, effectively insulated from one another.

11, 11, represent recesses or sockets produced in opposite sides of the partition 8 and opening into the respective compartments 9 and 10, and 12, 12, represent independent openings which are extended from the lower ends of the respective sockets or recesses 11, 11, down through the wall of the dome-like central portion of the rosette, said independent openings 12, 12, being adapted for the outward passage of the flexible tinsel lamp-connections 13, 13.

In applying the rosette for use, the flexible connections 13, 13, are first passed upward from the lower rounded face of the dome-projection 5 through the openings 12, 12, at the central part thereof, emerging from said openings 12, 12, into the respective compartments 9 and 10 at opposite sides of the partition 8. Knots 14 are then produced in the flexible connections after which said connections are drawn downwardly so as to seat said knots within the sockets or recesses 11., 11, which are provided to receive them. Beyond the knots 14, the ends of the flexible connections 13, 13, are bare-d as seen at 16 in Figs. 5 and 6 and are passed through independent openings 15, 15, produced in the opposite sides of the dome-like portion 5 andleading into the respective compartments 9 and 10, the inner ends of said openings 15 being flared or enlarged to permit ready insertion of said bared ends of the connections. After the connections 13 are knot-ted and of the rosette.

tended an opening 26 leading to the front face of the passed through openings 1.5, 15, the lid or cover 7 is applied and a perfect insulation of the connections is thus attained since there can be no contact established between them'even should the covering be broken at the knots 14.

At opposite sides of the lower surface of the disk-like body portion 1 and extended upon the edge-flange 2 thereof, adjacent to the openings 15, 15 in the dome portion 5 are L-shaped lugs or projections 17, forming platforms integral with said body portion and extended slightly beyond the surface of the edge-flange and adapted for the attachment of Lshaped metal clips 19, 19, which are held in position by screws 18, 18, the heads of which are countersunk, as seen in Fig. 2, in the rear face of the body portion and the tips of which have tln'eaded-engagement in the metalclips 19 at the face. A coating of lacquer or other insulating substance may, if desired, be spread upon the fiat rear side of the body portion above the heads of screws 18 to prevent electrical contact thereof when the rosette is applied to a wall or ceiling for use.

The extremities of the arms of the L-shapcd metal clips 19, 19 are upbent or flanged at right-angles to the body portion thereof asseen at 20 and 21, and adjacent to said flanged extremities there are provided screws 22 and 23, respectively, engaged with said clips in position for binding the circuit connections thereto. The flanges 20 of clips 19 which are adjacent to the openings 15, 15, in opposite sides of the dome 5 are made rounded or curved as clearly seen in Figs. 1 and 5 for ready insertion of the ends (of the tinsel connections) 16 so that said ends may be quickly and conveniently applied and clamped beneath the heads of screws 22, 22, as seen at 28 in Fig. 5.

In Figs. 5 and 7, I have shown one of the electrical conductors leading to the rosette and said conductor is provided in a well-known way with a heavy outer covering or coating 24, the blunt extremity of Which is seated in a socket or recess 25 produced in the rear face of the edge flange 2 of the insulating body portion From the base of the socket 25 is exedge-flange 2 at a point adjacent to one of the clips 19 and through said opening is extended the bared end of the feed-conductor as seen at 27, said bared end being thus brought into convenient position to be clamped beneath the screw 23 of the corresponding clip 19. The upbent extremity 21 of said clip, adjacent to screw 23 serves to guide the bared end of the conductor so that it may readily be inserted beneath the screwhead.

From the above description of my improvements it will be evident that the rosette is of an extremely simple and inexpensive nature and is especially well adapted for use by reason of the perfect insulation of the conductors afforded by it and it'will also be obvious that the device being unprovided with a fuse affords substantial security against fires such as often arise from defective insulation or from the burning out of fuses in such devices. It will also be obvious from the above description that the device is susceptible of some change without material departure from the principles and spirit of the invention and for this reason I do not desire to be understood as limiting myself to the precise form and arrangement of the several parts of the device as herein set forth in carrying out my invention in practice.

Having thus described my invention, what I claim and desire to secure by Letters-Patent is 1. A rosette having a portion formed from insulating material with a hollow open at the rear side of the device and having a transverse insulating partition dividing said hollow into independent compartments to independently receive circuit-connecti'ons, said portion having independent inlet openings in its walls and communicating with the respective compartments for the inward passage of such circuit-connections, and said partition having independent outlet openings for said circuit connections, and an insulating lid or cover fitted over said hollow on the rear side of the portion wherein the same is produced.

2. A rosette having a portion formed from insulating material with a hollow open at the rear side of the device and surrounded by an annular seat, an insulating partition extended across said hollow and dividing the same into compartments to receive circuit-connections, said hollow portion having openings 'in its walls and communieating with the respective compartments for the passage of such circuitconnections, and an insulating lid or cover fitted in said hollow on the rear side of the portion wherein the hollow is produced with edge portions engaged in the annular seat around the hollow.

3. A rosette having a body portion formed from insulating material with a central hollow dome-like portion and an edge-fiange surrounding the same, said dome-like portion having separatecompartments toreceive lamp connections and having openings in its walls for the passage of such connections to and from its respective compartments, metallic clips at opposite sides of the edgefiangc and adapted for connection with said lamp-connections and also with circuit-conductors and screws having heads on the rear side of the rosette and having their tips engaged in said metallic clips to hold the same in position.

4. A rosette having a hollow portion formed from insulating material with an insulating partition dividing its hollow into compartments to receive circuit-connections, said portion having openings in its walls leading to and from the respective compartments for the passage of cir cuit-connoctions, and sockets formed in opposite sides of said partition and communicating with the respective compartments and with which said openings in the wall of the hollow portion communicate.

5. The combination with a rosette formed from insulating material with an opening for the passage of a bared circuit-conductor and surrounded by an enlarged socket on the rear face of the rosette, of said bared conductor and a blunt ended heavy outer coating or covering on the latter, said blunt end seating in said socket.

6. A rosette having a body portion formed from insulating material with an edge-flange extended around it and provided with an L-shaped projection on its front face and an L-shaped metal clip attached on said projection and provided with means for connection with a lamp-wire and a line-conductor, respectively.

Signed at Cincinnati, Ohio, this 16th day of October, 1905.

WM. F. BITTER. Witnesses JOHN Enms JONES, WILLIAM SCHUCIIARDT. 

